| 摘要 |
Oscillating chute in a pressurised enclosure is suspended between two branches of a fork, the stem of which passes through the side wall of the enclosure. The chute pivots about an axis between the branches, and the fork pivots about its own longitudinal axis, which is perpendicular to the axis of suspension of the chute. The movement of the chute is controlled by a linkage passing through the hollow stem of the fork. It is connected to an oscillating control member outside the enclosure having the same degrees of freedom as the chute. The movement of the member is thus reproduced at the chute.
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